Pipe-straightening attachment for presses



Aug 3 1926.. 1,594,439

T. W. WILLIAMS PIP-E STRAIGHTENING ATTACHMENT FOR PRESSES Filed Feb. 18,1925 WITNESSES ATTORNEYS Patented Aug. 3, 1926.

UNITED STATES THORNTON W. WILLIAMS, OF OIL HILL, KANSAS.

PIPE-STRAIGHTENING ATTACHMENT FOB PIR-ESSES.

Application filed February 18, 1925.

My present invention relates generally to pipe and tube straighteningdevices, and more particularly to pipe and tube straighteningattachments applicable to a certain class of power machines, moreespecially punch presses whereby such machines may be easily and quicklyadapted to the straightening of pipes and tubes.

In the accompanying drawing which illustrates my present invention andforms part of this specification,

Figure 1 is a front view showing the well known type of punch press towhich my pipe straightening attachment has been added.

Figure 2 is a side view thereof.

Referring now to these figures, I have shown in a very general way apunch press of known construction, the frame of which is indicated at 10and the vertically movable plunger at 11.

The pipe or shearing blade is commonly attached to the plunger 11 byvirtue of a dove-tailed slot at the lower end of the plunger, and forthis reason my invention composes a pipe engaging die 12 provided with adove-tailed rib 13 by means of which it may be readily associated withthe dovetailed slot 1 1 of the plunger, as most plainly seen in Figure1, in order to properly support the die for movement with the plunger.

My invention also proposes a pipe and tube support preferably includingtwo similar sections 15 and 16, each provided with an upper outwardlyoffset'portion 17 whose upper surface is grooved as at 18 and whoseupper edges have oppositely disposed recesses 19 forming bearings at theupper side portions of the grooves 18. These bearings receive thetrunnions 20 of pipe and tube supporting rollers 21 whose lower portionsextend into the grooves 18 and whose upper portions, projecting abovethe sections 15 and 16 of the support are thus adapted to engage a pipeor tube 22 at spaced points below and upon opposite sides Serial No.10,128.

of the die 12, the latter of which and the rollers 21 being grooved tofacilitate their engagement with the pipe or tube surface.

By forming the support in two similar sections 15 and 16, it may be morereadily manufactured and transported, and especially in view of the factthat these sections are exactly alike they may be readily reversed sothat but a single form is necessary and rights and lefts are avoided.

The sections 15 and 16 of the support are preferably secured to thelower portion of the frame 10 of the punching shearer as by means ofattaching bolts 23 and the support as a whole extends in the uprightposition shown in Figure 2 so that the pipe or tube to be bent is thusin vertical alinement with the die 12 lowered intoengagement with thatportion of the pipe between the rollers 21, by virtue of downwardmovement of the plunger 11.

In this way punches of the type cescribed, commonly found in the oilwell districts may be easily and quickly adapted to the straightening oftubes and pipes used 'in pipe lines as well as hollow drill stems, wellcasings and the like so that the necessity of separate machines for thispurpose is avoided in the interest of the company.

What I claim is:

A pipe straightening attachment for punch presses of the type having avertically movable plunger, consisting of a grooved pipe engaging diemounted in connection with said plunger, a support mounted in connectionwith the press frame below the plunger, and pipe supporting rollersmounted in said support below and at opposite sides of the die, the saidsupport being in 1 two similar sections, detachably connected to thepress, and, having oppositely outstanding and upstanding portionsgrooved along the top thereof and provided with bearing recesses for therollers at opposite sides of the grooves.

THORNTON W. WILLIAMS.

